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ReactiveTokenProvider.java
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ReactiveTokenProvider.java
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/*
* Copyright 2017-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.auth.oauth2;
import com.google.auth.Credentials;
import org.springframework.web.reactive.function.client.WebClient;
import reactor.core.publisher.Mono;
public interface ReactiveTokenProvider {
Mono<AccessToken> retrieve();
static ReactiveTokenProvider createCacheable(Credentials credentials) {
ReactiveTokenProvider reactiveTokenProvider = create(credentials);
return new CacheableTokenProvider(reactiveTokenProvider);
}
static ReactiveTokenProvider create(Credentials credentials) {
WebClient webClient = WebClient.builder().build();
return create(credentials, webClient);
}
static ReactiveTokenProvider create(Credentials credentials, WebClient webClient) {
if (credentials instanceof UserCredentials) {
return new UserCredentialsTokenProvider(webClient, (UserCredentials) credentials);
} else if (credentials instanceof ServiceAccountCredentials) {
return new ServiceAccountTokenProvider(webClient, (ServiceAccountCredentials) credentials);
} else if (credentials instanceof ComputeEngineCredentials) {
return new ComputeEngineTokenProvider(webClient, (ComputeEngineCredentials) credentials);
} else {
throw new UnsupportedOperationException(
"Unsupported credentials type. UserCredentials,ServiceAccountCredentials,ComputeEngineCredentials are supported");
}
}
}